scholarly journals Seasonal migration and reproductive behaviour of the Common River Frog (Amietiaangolensis) in the North-West University Botanical gardens

2014 ◽  
Vol 33 (1) ◽  
Author(s):  
J. Viviers ◽  
D.J.D. Kruger ◽  
L.H. Du Preez
Keyword(s):  
Reproductive Behaviour ◽  
Seasonal Migration ◽  
North West ◽  
Botanical Gardens ◽  
The North ◽  
The Common

scholarly journals Monitoring the behavior of the Common River Frog (Amietia angolensis) with modern day technology Pit-tags.

2012 ◽  
Vol 31 (1) ◽  
Author(s):  
Joanita Viviers ◽  
T. Orlekowsky ◽  
H. Van Coller ◽  
L.H. Du Preez
Keyword(s):  
Pit Tags ◽  
North West ◽  
Botanical Gardens ◽  
The North ◽  
The Common

The study was conducted in the North-West University Botanical Gardens where all 18 ponds provide habitat for the river frogs. A total of 117 river frogs were marked with pit-tags. Their movements in the garden, between and within ponds were monitored over a period of 12 months. Results showed that river frogs are active throughout the year and that males are more territorial than females.

scholarly journals On tho proportions of the prevailing winds, the mean temperature, and depth of rain in the climate of London, computed through a cycle of Eighteen Years, or periods of the Moon’s declination

1843 ◽  
Vol 4 ◽  
pp. 300-300
Keyword(s):  
The Moon ◽  
Fair Weather ◽  
North West ◽  
West Wind ◽  
North East ◽  
East Wind ◽  
The North ◽  
The Common ◽  
The Mean ◽  
Solar Influence

In this paper the author investigates the periodical variations of the winds, rain and temperature, corresponding to the conditions of the moon’s declination, in a manner similar to that he has already followed in the case of the barometrical variations, on a period of years extending from 1815 to 1832 inclusive. In each case he gives tables of the average quantities for each week, at the middle of which the moon is in the equator, or else has either attained its maximum north or south declination. He thus finds that a north-east wind is most promoted by the constant solar influence which causes it, when the moon is about the equator, going from north to south; that a south-east wind, in like manner, prevails most when the moon is proceeding to acquire a southern declination ; that winds from the south and west blow more when the moon is in her mean degrees of declination, going either way, than with a full north or south declination ; and that a north-west wind, the common summer and fair weather wind of the climate, affects, in like manner, the mean declination, in either direction, in preference to the north or south, and most when the moon is coming north. He finds the average annual depth of rain, falling in the neighbourhood of London, is 25’17 inches.

Seasonal Migration Patterns of Postlarval and Juvenile Banana Prawns, Penaeus merguiensis de Man, in the Major Rivers of the Gulf of Carpentaria, Australia

1979 ◽  
Vol 30 (2) ◽  
pp. 143 ◽  
Author(s):  
DJ Staples
Keyword(s):  
Seasonal Pattern ◽  
Temporal Distribution ◽  
Major Change ◽  
Seasonal Migration ◽  
Geographical Differences ◽  
Monsoon Period ◽  
Migration Patterns ◽  
North West ◽  
The North ◽  
Two Generations

Samples of juvenile P. merguiensis taken from 20 major rivers around the Gulf of Carpentaria from 1970 to 1973 showed that the Gulf could be divided into four major areas, each characterized by its own seasonal pattern of postlarval immigration and emigration of juveniles. The main nursery areas for the Gulf, however, are the rivers along the east and south-east coasts (Cape Keerweer to Mornington Island) and the majority of prawns migrate from these rivers during the north-west monsoon period (November to February); the main recruitment into the commercial fishery, there- fore, occurs during a relatively confined period each year. Additional sampling in 1976-77 showed that although there have been recent changes in the temporal distribution of adult prawns as a result of increased fishing pressure, no major change in the temporal pattern of postlarval immigration has resulted. An hypothesis is presented in which the observed geographical differences in the seasonal migration patterns are explained with reference to a basic pattern involving two generations of P. merguiensis each year.

scholarly journals Appearance of the common paper nautilus Argonauta argo related to the increase of the sea surface temperature in the north-eastern Atlantic

2002 ◽  
Vol 82 (5) ◽  
pp. 855-858 ◽  
Author(s):  
A. Guerra ◽  
A.F. González ◽  
F. Rocha
Keyword(s):  
Surface Temperature ◽  
Sea Surface Temperature ◽  
First Record ◽  
Mature Female ◽  
Sea Surface ◽  
North West ◽  
The North ◽  
North Eastern ◽  
The Common ◽  
The Relationship

The relationship between the increase of the sea surface temperature observed off the Galician coast and the appearance of a tropical poikilotherm species Argonauta argo in these coasts is discussed. This is the first record of Argonautaargo in the north-west Iberian Peninsula. A female of this species was captured alive near the surface at dusk on 22 December 2000 in the Ria de Aldán (42°15′N–08°48′W). The specimen, a mature female of 70 mm mantle length and 96 mm shell diameter, died 36 hours after introduction in the tank.

scholarly journals When to count? Indices of population size for mountain hares of the north-west Lammermuir Hills, Scotland

2020 ◽  
Vol 27 (3) ◽  
Author(s):  
G.W. Pettigrew
Keyword(s):  
Population Size ◽  
Activity Patterns ◽  
Reproductive Behaviour ◽  
Camera Trap ◽  
Coat Colour ◽  
Diel Activity ◽  
Red Grouse ◽  
Factors Affecting ◽  
North West ◽  
The North

Surveys with binoculars at two different times of day and in various months of the year, along with camera trap studies of diel activity patterns, were used to inform an appropriate period to count mountain hares ( Lepus timidus) on managed red grouse (Lagopus lagopus ) moorland of the Lammermuir Hills, south-east Scotland. Factors affecting the numbers of hares counted were time relative to sunrise, the presence of winter coat colour and reproductive behaviour in spring. Counts of hares in March and April starting one hour before dawn were used as an index of population size of the mountain hare over three years of observations on three hill-tops, with densities of 23-33 hares km-2. The number of hares seen was stable or rose slightly over the three years despite a partial cull on one of the hills. In support of suitability of the timing of surveys used, camera trap studies revealed that the period around dawn in March and April was associated with high levels of hare activity.

scholarly journals The Derwentdale Plot, 1663.

1917 ◽  
Vol 11 ◽  
pp. 125-142 ◽  
Author(s):  
Henry Gee
Keyword(s):  
Early Years ◽  
West Side ◽  
North West ◽  
Prayer Book ◽  
The North ◽  
The Common ◽  
The Government ◽  
Common Prayer ◽  
The Church

Derwentdale is the valley through which the Derwent runs on the north-west side of the county of Durham. In this valley one of the first Anabaptist churches was gathered in the time of the Protectorate, and here, in the early years after the Restoration, a dangerous plot was formed, which presently ramified through the length and breadth of England. The object of this design, in the words of the man who discovered it, was‘to rise in rebellion against the government, and to destroy Parliament, and murder all Bishops, Deans, and Chapters, and all other ministers of the Church; to break all organs, and further to kill all the gentry that should either oppose them, or not join with them, and to destroy the Common Prayer Book, and to pull down all Churches.’

The Syntax of the Gezer Calendar

1953 ◽  
Vol 85 (1-2) ◽  
pp. 53-58 ◽  
Author(s):  
A. M. Honeyman
Keyword(s):  
Annual Cycle ◽  
Tenth Century ◽  
North West ◽  
The North ◽  
The Common ◽  
Common Era

The list of eight seasons named in the Gezer Calendar is consecutive and complete, and there is no reason for supposing that the wordin that inscription has any other than its normal meaning of “lunation, month”, or that the annual cycle at Gezer in the second half of the tenth century before the common era differed from the twelve-month year found in other parts of the North-West Semitic world as well as in Mesopotamia. It follows that some of the periods named in the Gezer list must extend over more than one month, i.e.—since there is no indication in the text of any fraction of a month—over two months at least. H. L. Ginsberg was the first to see that the solution is to be sought in the differing formsand, each of which occurs four times. Ginsberg proposed to treat the latter form as construct singular and the former as a construct dual withwawas amater lectionisto represent -ō < -ā in the nominative dual construct.

scholarly journals Introduction of the species of the genera Cotoneaster Medik. and × Sorbocotoneaster pozdnjakovii Pojark. from the Siberian flora in the Botanical Garden acad. A. V. Fomin of Taras Shevchenko National University of Kiev (message 1, Cotoneaster)

2021 ◽  
Vol 20 (1) ◽  
pp. 116-123
Author(s):  
A. T. Grevtsova ◽  
T. B. Vakulenko ◽  
N. S. Novischenko
Keyword(s):  
Botanical Garden ◽  
Source Material ◽  
North West ◽  
Botanical Gardens ◽  
Mountainous Regions ◽  
The North ◽  
National University ◽  
Living Material

The range of most species of the genus Cotoneaster Medik. located in the mountainous regions of Asia.According to the latest report by Janette Fryer and Bertil Hylmo, the genus Cotoneaster is represented by 2 subgenuses,11 sections and 37 series. Cotoneasters of Siberian flora: C. commixtus, C. laxiflorus, C. lucidus, C. megalocarpus, C. multiflorus, C. popovii, C. tjulinae, C. uniflorus, C. yakuticus, located in 2 subgenuses, 4 sections, 4 series. Collection of speciesof the genus Cotoneaster in the Botanical Garden acad. A.V. Fomin was created according the method of genus complexesby F. N. Rusanov, starting from 1972. The source material was attracted both by the extraction of seeds from the catalogsof foreign and Russian botanical gardens, and by the collection of seeds and living material in places of natural growth.Two expeditions were carried out to the regions of Siberia. The first one – Yakutsk in 1982 (10.08 – 29.08) along the route Kiev – Novosibirsk – Irkutsk – Tomsk – Krasnoyarsk – Aldan – Irkutsk – Kiev. The second – Central Siberian in 1983(24.07 – 17.08) along the route: Kiev – Irkutsk – Davsha – Nizhne –Angarsk – Severo –Baikalsk – Ulan –Ude – Kyakhta –Irkutsk – Chita – Moscow – Kiev. Morphological descriptions of annual shoots leaves, flowers, fruits, seeds of three typesof Cotoneasters: C. laxiflorus, C. lucidus, C. neo-popovii, micrographs of endocarp of bones, columns are given. The material is illustrated with photographs of plants introduced in the north-west of Ukraine (Kiev).

Ist der Name der nordwestböhmischen Stadt dt. Kaaden / tschech. Kadaň keltischen Ursprungs?

2018 ◽  
Vol 65 (1) ◽  
pp. 29-44
Author(s):  
Harald Bichlmeier
Keyword(s):  
Ad Hoc ◽  
The Other ◽  
North West ◽  
The North ◽  
Other Hand ◽  
The Common

Abstract The North-West-Bohemian town Kaaden (Czech Kadaň) lies in an area where Celts settled some two millennia ago. For this reason a Celtic etymology was proposed for this placename, although a Slavic etymology based on the Common Slavic personal name *Kadanъ (attested in Old Czech, Polish, Sorabian) had existed for decades: Kadaň (taken over later on into German as Ka(a)den) was derived from the personal name *Kadanъ with the possessive suffix Common Slavic *-jь and meant originally ‘Kadan’s (castle/town)’. It will be shown that the Celtic etymology which argues for a Proto-Celtic *katu-dūno- ‘town/castle of the fight/battle’ invokes too many ad-hoc-developments and scarcely (if at all) attested soundchanges to be regarded at all plausible. The ‘classical’ Slavic etymology, on the other hand, can be shown to be flawless in all aspects.

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